Lemon Grove, CA 92104 Frost Dates
Lemon Grove, CA: when does the frost end?
The NOAA station nearest to 92104 does not report a usable frost-date normal for either event, so no last-frost or first-frost figure is shown here. The USDA hardiness zone below is still real: Zone 10b (35 to 40°F average annual minimum).
Lemon Grove against the rest of the dataset
Lemon Grove's growing season runs about 365 days, ranking 1,137 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 486 of 2,555.
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Before leaning on 92104's figures: zone vs. frost date explains why Zone 10b and Lemon Grove's frost date answer different questions, while local microclimates explains what one yard in Lemon Grove can differ from the 92104 normal.